Asteraceae (Erigeron)

Protocol Information for:

Label_title:
Erigeron (divergens)

Family Names:

Family Scientific Name:
Asteraceae

Family Common Name:
Aster family

Scientific Names:

Genus:
Erigeron

Species:
divergens

Scientific Classification:

Scientific SubSpecies:

Species Authority:
Torr. & A. Gray

Scientific SubAuthority:

Authors:

Jim Barner

Common Synonym:

Genus:

Species:

Synonym Classification:

Synonym SubSpecies:

Species Authority:

Synonym SubAuthority:

Other Information:

Common Name:
Spreading fleabane

Species Code:
ERDI4

Ecotype:
BLM, Seeds of Success: USFS, Tonto National Forest, Forest road 1681, 0.5 miles from junction with Forest road 201, Maricopa County, Arizona: 4700 ft. elevation

General Distribution:

Known Invasiveness:

Propagation Goal:
seeds

Propagation Method:
seed

Product Type:
Propagules (seeds, cuttings, poles, etc.)

Stock Type:

Grow Time:
0 Weeks

Target Specifications:

Propagation Collection:
Very small lot, 0.035 pounds, hand collected into paper envelope.

Propagation Processing/Propagule Characteristics:
METHOD OF CLEANING: Seed lot is first processed using a Hoffman Hand Deawner/Debearder to remove seed from flower. Laboratory Test Sieve, mesh size 30 is used next to remove stems and non seed material. Seed is then air-screened, to remove remaining nonviable seed and inert material, using an office Clipper, top screen: 40 x 40 wire and a bottom screen: blank, low speed, and low air. Number of Seeds per Pound: 11,340,000, Purity: 98%, X-Ray 100 Seeds: 90% Filled, TZ: 76% (Oregon State University Seed Laboratory Analysis)

Pre-Planting Propagule Treatments:

Growing Area Preparation / Annual Practices for Perennial Crops:

Establishment Phase:

Length of Establishment Phase:

Active Growth Phase:

Length of Active Growth Phase:

Hardening Phase:

Length of Hardening Phase:

Harvesting, Storage and Shipping:
Storage: Cold Storage, 33-38 Degrees Fahrenheit

Length of Storage:

Guidelines for Outplanting / Performance on Typical Sites:

Other Comments:
Very small seeds and small seed lots present a cleaning and testing challenge. Different types of equipment, designed for smaller lots, are used.

References:

Citation:
Barner, Jim. 2009. Propagation protocol for production of Propagules (seeds, cuttings, poles, etc.) Erigeron divergens Torr. & A. Gray seeds USDA FS - R6 Bend Seed Extractory Bend, Oregon. In: Native Plant Network. URL: https://NativePlantNetwork.org (accessed 2025/07/17). US Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources.

Personal tools